well the layout of the seats looks very similar to the V35, so i'm guessing its a similar mechanism. in the V35 it electrically moves forward when you angle the seat, then electrically moves back when you lock it back into place
hell, the car weights 1700+kg that better include electric seats..
i personally have no issues with there being a "premium" model and a base model as long as the driveline is the same. i would never spend that much on a car and not go all out with leather, bose, etc. but i can appreciate that some people might want to..